| 摘要 |
<P>PROBLEM TO BE SOLVED: To prevent water or oil from entering a downstream-side end of a gas outlet hole and accumulating therein. <P>SOLUTION: A fitting hole 4i is formed in a downstream side opening of a gas outlet hole 4b. Inside the gas outlet hole 4b, a cock member 15 is provided movably in a longitudinal direction of the gas outlet hole 4b. The cock member 15 is movable between a fitting position where the cock member 15 is fitted into the fitting hole 4i and an opening position where the cock member 15 is moved from the fitting position to an upstream side of the gas outlet hole 4b to move an auxiliary valve element 13 and a main valve element 8 to an open position. When the cock member 15 is positioned at the fitting position, an end face 15d of the cock member 15 is protruded above a tip end surface of a plug 4A, and the cock member 15 is spaced apart to a downstream side of the gas outlet hole 4b with respect to the auxiliary valve element 13 positioned at a closed position. <P>COPYRIGHT: (C)2012,JPO&INPIT |
